math
posted by sofia on .
. The ones digit is 0.
. The hundreds and tens digits are consecutive numbers.
. The digits in the thousands period have a sum of 15, with the hundred thousands digit being the greatest of the threes digits and the ten thousands digit being the least.
. The amount in the millions period is 31.000 thousands.

don't know whether digits may be repeated, but if not,
31,645,890
fits the description